2SO2 (g) + O2 (g) ⇌V2O5 (s)  is an example f

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 Multiple Choice QuestionsMultiple Choice Questions

591.

Predict the product of reaction of I2 with H2O2 in basic medium

  • I-

  • I2O3

  • IO3-

  • I3-


592.

Which of the following is not hygroscopic?

  • CsCl

  • MgCl2

  • CaCl2

  • LiCl


593.

What is the pH of0.01 M glycine solution? For glycine Ka1= 4.5x10-3 and Ka2=1.7x10-10 298 K.

  • 3.0

  • 10.0

  • 7.06

  • 8.2


594.

Which of the following is not a characteristic of equilibrium?

  • Rate is equal in both directions

  • Measurable quantities are constant at equilibrium.

  • Equilibrium occurs in reversible condition.

  • Equilibrium occurs only in open vessel at constant temperature.


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595.

25 mL, 0.2 M Ca(OH)2 is neutralised by 10 mL of 1 M HCI. Then pH of resulting solution is

  • 1.37

  • 9

  • 12

  • 7


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596.

2SO2 (g) + O2 (g) V2O5 (s)  is an example for :

  • neutralisation reaction

  • homogeneous catalysis

  • heterogeneous catalysis

  • irreversible reaction


C.

heterogeneous catalysis

2SO2 (g) + O2 (g) V2O5 2SO3 (g)

In this reaction , reactants as well as the catalyst are present in more than one phase , hence it is an example of heterogeneous catalysis .


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597.

In equilibrium state , the value of G is :

  • zero

  • negative

  • positive

  • may be negative or positive


598.

Which one of the following salts on being dissolved in water gives pH > 7 at 25°C ?

  • KCN

  • KNO3

  • NH4Cl

  • NH4CN


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599.

Assertion : AgCl is more soluble in NH3 than in water.

Reason : Ammonia is more polar than water.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false


600.

Assertion : The equilibrium constant is fixed and a characteristic for any given chemical reaction at a specified temperature.

Reason: The composition ofthe final equilibrium mixture at a particular temperature depends upon the starting amount of reactants.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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